CN218423505U

CN218423505U - Trigger position locking device of airless spray gun

Info

Publication number: CN218423505U
Application number: CN202222794281.5U
Authority: CN
Inventors: 陈伟; 赖小凤
Original assignee: Chongqing Yada Machinery Co ltd
Current assignee: Chongqing Yada Machinery Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-02-03
Anticipated expiration: 2032-10-21

Abstract

The utility model relates to a trigger position locking device of an airless spray gun, which comprises a shell of the spray gun for accommodating and fixing various functional components, wherein a button is arranged at the tail end at the rear part of the shell, a mandril is arranged in the button, the mandril is sleeved in a first spring, the lower end of the mandril is provided with a telescopic mechanism, the left end of the telescopic mechanism is provided with a locking device, the lower end of the locking device is provided with a thimble, and the thimble is sleeved in a pre-tightening spring; the utility model discloses well telescopic machanism and locking device's design, through pressing the button, the push rod can stretch out the spout through telescopic machanism, promotes the stay for the thimble is relieved and is locked, presses the button once more, just can lock once more, and the operation is light, simple, also can the one-hand operation.

Description

Trigger position locking device of airless spray gun

Technical Field

The utility model relates to an airless spraying rifle technical field, more specifically say, relate to trigger position locking means of airless spraying rifle.

Background

At present, the application of coating and glue is more and more extensive, in order to save labor force and improve the spraying effect and quality, the coating and the glue are usually finished by an airless spraying gun, when the airless spraying gun works, the coating and the glue are in a pressure load state in the gun, the actual operation always needs frequent interruption and is not suitable for unloading the load, and the condition of mistaken spraying caused by hand mistake, foot stumbling and improper placement is very easy to occur if a reliable and safe trigger locking device is not provided.

Among the prior art, only a few airless spraying guns have trigger locking means, and simple locking is accomplished through fixing bolt to current locking means, and this kind of locking mode is not hard up easily when airless spraying gun frequently operates, is difficult for screwing moreover, may cause the condition that the mistake was spouted, the utility model discloses a new solution is proposed to above problem.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a trigger position locking means of airless spray gun to solve the technical problem who mentions in the background art.

In order to solve the above problems, the utility model adopts the following technical proposal.

The trigger position locking device of the airless spray gun comprises a shell of the spray gun for containing and fixing various functional components, a button is arranged at the tail end of the rear part of the shell, an ejector rod is arranged inside the button and sleeved inside a first spring, a telescopic mechanism is arranged at the lower end of the ejector rod, a locking device is arranged at the left end of the telescopic mechanism, an ejector pin is arranged at the lower end of the locking device, and the ejector pin is sleeved inside a pre-tightening spring.

It is further explainable to the utility model discloses, telescopic machanism includes spout, slide rail, spacing sawtooth, plunger, arch, column cap sawtooth, cam, strip sawtooth, push rod, second spring and stopper, the ejector pin cup joints the inside of spout, the spout is cylindric, inside the spout inserts the shell to one side, the inside slide rail that is provided with of spout, lower extreme at the slide rail is provided with spacing sawtooth, the inside of spout is provided with plunger, the upper end and the ejector pin fixed connection of plunger, the lower extreme cooperation slide rail of plunger is provided with the arch, tail end at the plunger is provided with the column cap sawtooth, the lower extreme of plunger is provided with the cam, the upper end of cam is provided with four strip sawtooth, the sawtooth is towards the direction of plunger, strip sawtooth and slide rail sliding connection, the lower extreme of cam is provided with the push rod, the push rod slides and cup joints inside the second spring, the bottom that the lower extreme of spout corresponds the second spring is provided with the stopper.

Furthermore, the number of the limiting sawteeth is eight, the protrusions of the plunger are in a long strip shape, the protrusions are eight and are in sliding connection with the sliding rail, the number of the column cap sawteeth is eight, the strip sawteeth are in a bevel tooth shape, and the strip sawteeth, the limiting sawteeth and the column cap sawteeth are not completely meshed and are only partially meshed.

It is right to further explain the utility model discloses it includes stay, through-hole, locking spring, recess and fixed block to further explain, locking device, the stay sets up in telescopic machanism's left side, and the lower extreme of stay is provided with the through-hole, and the stay upper end is provided with locking spring the inside recess and the fixed block of being provided with of shell, locking spring's the other end is fixed in the inside of recess, and the stay leans on the fixed block.

Furthermore, the thimble passes through the through hole, and the upper end of the thimble is provided with a sharp groove corresponding to the position of the through hole, and when the locking piece inclines, the upper end of the through hole can be inserted into the sharp groove.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses well telescopic machanism and locking device's design, through pressing the button, the push rod can stretch out the spout through telescopic machanism, promotes the stay for the thimble is relieved and is locked, presses the button once more, just can lock once more, and the operation is light, simple, also can the one-hand operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial schematic view of the structure;

fig. 3 is a partial structural schematic diagram.

The numbering in the figures illustrates:

1. a housing; 2. a button; 3. a top rod; 4. a first spring; 5. a telescoping mechanism; 6. a locking device; 7. a thimble; 8. pre-tightening the spring; 11. a groove; 12. a fixed block; 51. a chute; 52. a slide rail; 53. a limiting saw tooth; 54. a plunger; 55. a protrusion; 56. column cap saw teeth; 57. a cam; 58. strip-shaped sawteeth; 59. a push rod; 510. a second spring; 511. a limiting block; 61. a locking piece; 62. a through hole; 63. a locking spring; 71. a sharp groove.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

The embodiment is as follows:

referring to fig. 1 to 3, the trigger position locking device of the airless spray gun comprises a housing 1 of the spray gun for accommodating and fixing various functional components, a button 2 is arranged at the rear tail end of the housing 1, a push rod 3 is arranged inside the button 2, the push rod 3 is sleeved inside a first spring 4, a telescopic mechanism 5 is arranged at the lower end of the push rod 3, a locking device 6 is arranged at the left end of the telescopic mechanism 5, a thimble 7 is arranged at the lower end of the locking device 6, and the thimble 7 is sleeved inside a pre-tightening spring 8.

The telescoping mechanism 5 comprises a sliding groove 51, a sliding rail 52, a limiting sawtooth 53, a plunger 54, a protrusion 55, a column head sawtooth 56, a cam 57, a strip sawtooth 58, a push rod 59, a second spring 510 and a limiting block 511, the push rod 3 is sleeved inside the sliding groove 51, the sliding groove 51 is cylindrical, the sliding groove 51 is obliquely inserted into the shell 1, the sliding rail 52 is arranged inside the sliding groove 51, the limiting sawtooth 53 is arranged at the lower end of the sliding rail 52, the plunger 54 is arranged inside the sliding groove 51, the upper end of the plunger 54 is fixedly connected with the push rod 3, the lower end of the plunger 54 is provided with the protrusion 55 in a manner of being matched with the sliding rail 52, the column head sawtooth 56 is arranged at the tail end of the plunger 54, the cam 57 is arranged at the lower end of the plunger 54, the four strip sawteeth 58 are arranged at the upper end of the cam 57, the sawteeth face the direction of the plunger 54, the strip sawteeth 58 are slidably connected with the sliding rail 52, the push rod 59 is arranged at the lower end of the cam 57, the push rod 59 is slidably sleeved inside the second spring 510, and the limiting block 511 is arranged at the lower end of the sliding groove 51 corresponding to the bottom of the second spring 510.

The number of the limiting sawteeth 53 is eight, the protrusions 55 of the plunger 54 are long-strip-shaped, the number of the protrusions 55 is eight, the protrusions 55 are slidably connected with the slide rail 52, the number of the column head sawteeth 56 is eight, the strip-shaped sawteeth 58 are in the shape of inclined plane teeth, and the strip-shaped sawteeth are not completely meshed with the limiting sawteeth 53 and the column head sawteeth 56 and are only partially meshed.

Locking device 6 includes stay 61, through-hole 62, locking spring 63, recess 11 and fixed block 12, stay 61 sets up in telescopic machanism 5's left side, and the lower extreme of stay 61 is provided with through-hole 62, and the stay 61 upper end is provided with locking spring 63 the inside recess 11 and the fixed block 12 of being provided with of shell 1, the other end of locking spring 63 is fixed in the inside of recess 11, and stay 61 leans on fixed block 12.

The thimble 7 passes through the through hole 62, a tip groove 71 is arranged at the upper end of the thimble 7 corresponding to the through hole 62, and when the locking piece 61 is inclined, the upper end of the through hole 62 is inserted into the tip groove 71.

The working process of the utility model is as follows:

an operator can press the button 2 to push the push rod 3 to move downwards to drive the plunger 54 and the cam 57 to slide downwards in the sliding groove 51, the cam 57 slides downwards to slide out of the sliding rail 52, the cam 57 rotates under the action of the shaft spring force of the second spring 510, the strip-shaped sawtooth 58 is meshed with a part of the column head sawtooth 56, when the first spring 4 bounces, the plunger 54 and the cam 57 slide upwards, the strip-shaped sawtooth 58 is in edge contact with the limiting sawtooth 53 to increase the rotating amplitude, the strip-shaped sawtooth 58 is meshed with the limiting sawtooth 53, so that the push rod 59 slides out of the sliding groove 51 to be in contact with the locking sheet 61 to push the locking sheet 61 to move, the thimble 7 can move freely, and the locking device is unlocked; when the button 2 is pressed again, the push rod 3 pushes the plunger 54 to move downwards to be in contact with the cam 57, so that the strip-shaped sawteeth 58 are separated from the limiting sawteeth 53, the cam 57 rotates under the action of the shaft spring force, the cam 57 and the plunger 54 enter the slide rail 52 to slide upwards, the push rod 59 is driven to enter the slide groove 51, the locking sheet 61 is restored to the original position under the action of the locking spring 63, the upper end of the through hole 62 is clamped into the sharp groove 71, and the thimble 7 is limited to move, so that locking is formed.

The foregoing is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the protection scope of the present invention by replacing or changing the technical solution and the modified concept of the present invention within the technical scope of the present invention.

Claims

1. Trigger position locking means of airless spray gun, including holding and fixed each functional unit's shell (1) of spray gun, its characterized in that: the rear tail end of the shell (1) is provided with a button (2), a push rod (3) is arranged inside the button (2), the push rod (3) is sleeved inside a first spring (4), a telescopic mechanism (5) is arranged at the lower end of the push rod (3), a locking device (6) is arranged at the left end of the telescopic mechanism (5), a thimble (7) is arranged at the lower end of the locking device (6), and the thimble (7) is sleeved inside a pre-tightening spring (8).

2. The trigger position lock of the airless spray gun according to claim 1, wherein: the telescopic mechanism (5) comprises a sliding groove (51), a sliding rail (52), limiting sawteeth (53), a plunger (54), a protrusion (55), column cap sawteeth (56), a cam (57), strip sawteeth (58), a push rod (59), a second spring (510) and a limiting block (511), the push rod (3) is sleeved in the sliding groove (51), the sliding groove (51) is cylindrical, the sliding groove (51) is obliquely inserted into the shell (1), the sliding rail (52) is arranged in the sliding groove (51), the limiting sawteeth (53) are arranged at the lower end of the sliding rail (52), the plunger (54) is arranged in the sliding groove (51), the upper end of the plunger (54) is fixedly connected with the push rod (3), the protrusion (55) is arranged at the lower end of the plunger (54) in a matching manner, the sawteeth (56) are arranged at the tail end of the plunger (54), the cam (57) is arranged at the lower end of the plunger (54), the upper end of the cam (57) is provided with the four strip sawteeth (58), the sawteeth face the direction of the plunger (54), the strip sawteeth (58) are sleeved with the sliding rail (52), the lower end of the sliding rail (59) and the second spring (59) is arranged in the push rod (510), the lower end of the sliding groove (51) is provided with a limiting block (511) corresponding to the bottom of the second spring (510).

3. The trigger position lock of the airless spray gun according to claim 2, wherein: the limiting sawteeth (53) are eight, the protrusions (55) of the plunger (54) are in a long strip shape, the protrusions (55) are eight, the protrusions (55) are connected with the sliding rail (52) in a sliding mode, the column head sawteeth (56) are eight, the strip sawteeth (58) are in a bevel tooth shape, and the strip sawteeth are not completely meshed with the limiting sawteeth (53) and the column head sawteeth (56) and only partially meshed.

4. The trigger position lock of the airless spray gun according to claim 1, wherein: locking device (6) include stay (61), through-hole (62), locking spring (63), recess (11) and fixed block (12), stay (61) sets up in the left side of telescopic machanism (5), and the lower extreme of stay (61) is provided with through-hole (62), and stay (61) upper end is provided with locking spring (63) inside recess (11) and fixed block (12) of being provided with of shell (1), and the inside at recess (11) is fixed to the other end of locking spring (63), and stay (61) lean on fixed block (12).

5. The trigger position lock of the airless spray gun according to claim 4, wherein: the thimble (7) passes through the through hole (62), a sharp groove (71) is formed in the position, corresponding to the through hole (62), of the upper end of the thimble (7), and when the locking sheet (61) inclines, the upper end of the through hole (62) can be inserted into the sharp groove (71).